In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

I come in different shapes and sizes.
Parts of me are curved, other parts are straight.
You can put me anywhere you like,
but there is only one right place for me.
What am I?

A game is being played where eight players can last for thirty-five minutes. Six substitutes alternate with each player in this game. Thus, all players are on the pitch for the same amount of time including the substitutes.

For how long is each player on the pitch?

If two fifty-foot ropes are suspended from a forty-foot ceiling that is twenty feet apart, how much rope will you be able to steal if you have a knife?

Can you find a pattern and the missing number in the series given below?

100, 155, 258,? , 584, 819.

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

Find The Missing Number In the Sequence.
6 25 64 ? 32 1

What word is pronounced the same if you take away four of its five letters?

Too much grey makes things difficult. However, your task here is to find the elephant hidden in the picture.

Which city is three-fifths chick two third cat and 50% goat?